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DM368 BT1120 内同步问题

我们现在用DM368接BT1120 内同步模式,按照手册上说的配置怎么抓不到图?

For BT.1120, Data width is 16bits and the registers would be configured as:
MODESET.INPMOD = 1 …. YCbCr16bit
REC656IF.R656ON = 1 …. ITU-R BT.656 interface mode set
CCDCFG.BW656 = 0 …. SYNC detection on C7-C0

我现在的寄存器配置

# ./regrw.out 1c71000 64 -c 1                                                   
                                                                                
 0x01c71000: 00000003                                                           
 0x01c71004: 0000100f                                                           
 0x01c71008: 00000000                                                           
 0x01c7100c: 00000000                                                           
 0x01c71010: 00000000                                                           
 0x01c71014: 00000001                                                           
 0x01c71018: 000000dc                                                           
 0x01c7101c: 000004ff                                                           
 0x01c71020: 00000014                                                           
 0x01c71024: 00000014                                                           
 0x01c71028: 000002c7                                                           
 0x01c7102c: 0000ffff                                                           
 0x01c71030: 000000ff                                                           
 0x01c71034: 00000050                                                           
 0x01c71038: 00000000                                                           
 0x01c7103c: 00000418                                                           
 0x01c71040: 0000eb80                                                           
 0x01c71044: 00000000                                                           
 0x01c71048: 00000000                                                           
 0x01c7104c: 0000b1b1                                                           
 0x01c71050: 00000200                                                           
 0x01c71054: 00000200                                                           
 0x01c71058: 00000200                                                           
 0x01c7105c: 00000200                                                           
 0x01c71060: 00000000                                                           
 0x01c71064: 00000000                                                           
 0x01c71068: 00000000                                                           
 0x01c7106c: 00000000                                                           
 0x01c71070: 000002d0                                                           
 0x01c71074: 000002d0                                                           
 0x01c71078: 000002d0                                                           
 0x01c7107c: 00000000                                                           
 0x01c71080: 00007700                                                           
 0x01c71084: 00000003                                                           
 0x01c71088: 00001010                                                           
 0x01c7108c: 00000000                                                           
 0x01c71090: 00000000                                                           
 0x01c71094: 00000000                                                           
 0x01c71098: 00000000                                                           
 0x01c7109c: 00000000                                                           
 0x01c710a0: 00000000                                                           
 0x01c710a4: 00000000                                                           
 0x01c710a8: 00000000                                                           
 0x01c710ac: 00000000                                                           
 0x01c710b0: 00000000                                                           
 0x01c710b4: 00000000                                                           
 0x01c710b8: 0000001f                                                           
 0x01c710bc: 00000000                                                           
 0x01c710c0: 00000000                                                           
 0x01c710c4: 00000000                                                           
 0x01c710c8: 00000000                                                           
 0x01c710cc: 00000000                                                           
 0x01c710d0: 00000000                                                           
 0x01c710d4: 00001fff                                                           
 0x01c710d8: 000000dc                                                           
 0x01c710dc: 00000014                                                           
 0x01c710e0: 00000000                                                           
 0x01c710e4: 00000000                                                           
 0x01c710e8: 00006600                                                           
 0x01c710ec: 00000000                                                           
 0x01c710f0: 00000000                                                           
 0x01c710f4: 0000831a                                                           
 0x01c710f8: 00007000                                                           
 0x01c710fc: 00000000                                                           
                     

Chris Meng:

你好,

VD中断是否有产生?

Qian Dang:

回复 Chris Meng:

您好:

   我们有同样的问题。现在是接一个bt.1120格式的机芯。寄存器设置按照VPFE来做的

rec656Config.enable = 1;rec656Config.errorCorrectEnable = 0;rec656Config.dataWidth = 0;

但是miscConfig.ycInSwap=1的时候,也就是完全按照bt.656设置才能出来色彩完全不对的图像。

如果miscConfig.ycInSwap=0的时候,DRV_isifWaitInt(DRV_ISIF_INT_VD0, 2);就检测不到vd信号。

请教isif具体还要哪些设置。谢谢啦!!!

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